Find the derivative of f(t)=tan(πt)f(t) = \tan(\pi t)f(t)=tan(πt).
πsec2(πt)\pi \sec^2(\pi t)πsec2(πt)
sec2(πt)\sec^2(\pi t)sec2(πt)
πtan(πt)\pi \tan(\pi t)πtan(πt)
sec(πt)tan(πt)\sec(\pi t) \tan(\pi t)sec(πt)tan(πt)